FAQ: What is Oxidized Bitumen 75/30?

❓ What is Oxidized Bitumen 75/30?

🧪 Blown Asphalt 75/30 is a hard, semi-solid material made by blowing hot air through standard bitumen. The “75” refers to its softening point (75°C), while “30” indicates its penetration value (30 in 1/10 mm). This process makes the bitumen more durable and heat-resistant. It performs well in applications that demand thermal stability and long-term sealing strength.

❓ Where do industries use Oxidized Bitumen 75/30?

🏗️ Engineers use Blown Asphalt 75/30 in waterproofing, pipe insulation, roofing, and construction joints. Since it offers excellent adhesion and thermal resistance, it suits hot environments and heavy-duty projects. Contractors also rely on it in projects that need materials to stay stable despite pressure or heat.

❓ How does 75/30 differ from regular bitumen?

🔍 Blown Asphalt 75/30 contains a modified structure that performs better under heat. While regular bitumen softens easily, this grade stays solid in high temperatures. Because of that, it’s a preferred choice for industrial applications. It also resists oxidation and aging more effectively.

❓ Is this bitumen suitable for warm regions?

🌡️ Yes, Blown Asphalt 75/30 works very well in hot climates. The high softening point keeps the material stable under intense heat. As a result, it prevents surface deformation and flow in summer conditions. That makes it ideal for roofing, sealing, and infrastructure in warm environments.

❓ How can engineers test the quality of Oxidized Bitumen 75/30?

📊 They run tests for softening point, penetration, ductility, and specific gravity. These tests help confirm if the material meets project requirements. By following standards like ASTM or EN, teams can ensure consistent and reliable performance. Accurate testing supports safer and longer-lasting structures.